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1、18的英語是：eighteen，英 [?e??ti?n] 美 [?e??ti?n]。

2、We have reports of about an eighteen percent return and exchange rate, and sales fell off dramatically once word of that got out。我們接到的報告顯示，他們大約有百分之十八的退貨率和換貨率。消息傳出去后，他們的銷售業(yè)績就大幅下滑。

3、Since that time, the computer industry has not only managed to build programmable computing machines, theyve also outdone themselves by doubling the capabilities every eighteen months or so。從那時起，計算機工業(yè)不僅得以建造可編程計算機器，而且還通過每十八個月左右就使能力加倍，從而超越了它們自身。